For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

Vehicle Care
California Proposition 65 WarningDestination
If route guidance is not active, press the Destination Entry screen button on
the Home Page to access the Destination Entry screen. Several options can be selected
to plan a route by entering destinations.
Some destination entry items such as Previous Destinations, Address Book, and
My Home ...
Servicing the Airbag-Equipped Vehicle
Airbags affect how the vehicle should be serviced. There are parts of the airbag
system in several places around the vehicle. Your dealer and the service manual
have information about servicing the vehicle and the airbag system.
WARNING
For up to 10 seconds after the vehicle is turned off and ...
Windshield Washer Nozzle Hose Replacement
Preliminary Procedure
Remove the hood insulator. Refer to
Hood Insulator Replacement.
Place a clean container under the front driver side near where the
windshield washer nozzle and windshield washer pump
hose will be disconnected.
Recover all lost windshield washer solven ...